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Finding the Fourth Proportional to 17,710.92, 24,430.68 and 10,639.08

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Solution

The fourth proportional to 17,710.92, 24,430.68 and 10,639.08 is: 14,675.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,710.92 : 24,430.68 = 10,639.08 : x
  2. Step 2: Convert to fraction form
    17,710.92/24,430.68 = 10,639.08/x
  3. Step 3: Cross multiply
    17,710.92x = 24,430.68 × 10,639.08
  4. Step 4: Simplify right side
    17,710.92x = 259,919,958.97
  5. Step 5: Solve for x
    x = 259,919,958.97/17,710.92
  6. Step 6: Final answer
    x = 14,675.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.